Publications by authors named "Xiao Tong Li"

Article Synopsis
  • - The study investigates changes in low-frequency oscillations (LFO) in individuals with primary angle-closure glaucoma (PACG) and their correlation with gene pathways, using resting-state fMRI and transcriptome analysis.
  • - Results show significant differences in amplitude of low-frequency oscillations across different frequency bands in PACG patients, with genetic enrichment linked to cellular functions and important pathways like metabolic processes and circadian rhythms.
  • - The findings suggest a relationship between the brain's functional changes and molecular mechanisms in PACG, shedding light on how low-frequency oscillations relate to gene expression alterations in this condition.
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Background: This study aims to explore changes in white matter function and network connectivity in individuals with DR.

Methods: This study included 46 patients with DR and 43 age- and gender-matched healthy control (HC) participants were enrolled in the study. The aim was to investigate inter-group differences in white matter (WM) function and to analyze changes in the WM network among DR patients.

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Background: To assess the alterations in gingival thickness and the occurrence gingival recession subsequent to orthodontic-orthognathic treatment of mandibular incisors in skeletal Class III and identify risk factors associated with gingival recession.

Methods: In this retrospective cohort study, we enrolled 33 patients exhibiting skeletal Class III malocclusion, totaling 131 mandibular incisors, who were undergoing orthodontic- orthognathic treatment that did not involve extraction of mandibular teeth. The subjects were categorized into surgery group (S; n = 17; ANB = -5.

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The identification of the non-noble metal constituted TaO cluster as a potential analogue to the noble metal Au is significant for the development of tailored materials. It leverages the superatom concept to engineer properties with precision. However, the impact of incrementally integrating TaO units on the electronic configurations and properties within larger TaO-based clusters remains to be elucidated.

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Primary angle-closure glaucoma (PACG) is a sight-threatening eye condition that leads to irreversible blindness. While past neuroimaging research has identified abnormal brain function in PACG patients, the relationship between PACG and alterations in brain functional networks has yet to be explored. This study seeks to examine the influence of PACG on brain networks, aiming to advance knowledge of its neurobiological processes for better diagnostic and therapeutic approaches utilizing graph theory analysis.

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Article Synopsis
  • G-triplexes are special DNA sequences made of three G-rich sections that are being researched for their biological roles and potential in biosensing.
  • A new stable G-triplex (G3-F15) was found to enhance the fluorescence of a dye called Thioflavin T by 3200 times, the highest increase observed in G-rich sequences.
  • The study explores the structure, stability, and interaction of G3-F15 with different metal ions and demonstrates its use as a fluorescent sensor for detecting uracil-DNA glycosylase activity, paving the way for new applications in medical diagnostics.
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  • The study aimed to create a mesenchymal stem cell (MSC) model to assess acute graft-versus-host disease (aGVHD) in mice, using specific strains as both donors and recipients.
  • Female C57BL/6N mice provided bone marrow and lymphocytes, while BALB/c mice were exposed to lethal radiation and then injected with these cells to form a bone marrow transplantation model.
  • Results indicated that aGVHD significantly impaired the colony-forming ability of MSCs when cultured with serum from aGVHD mice compared to the bone marrow transplantation group, demonstrating the model's effectiveness in mimicking bone marrow microenvironment damage.
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Skeletal stem cells (SSC) have gained attentions as candidates for the treatment of osteoarthritis due to their osteochondrogenic capacity. However, the immunomodulatory properties of SSC, especially under delivery operations, have been largely ignored. In the study, we found that Pdpn and Grem1 SSC subpopulations owned immunoregulatory potential, and the single-cell RNA sequencing (scRNA-seq) data suggested that the mechanical activation of microgel carriers on SSC induced the generation of PdpnGrem1Ptgs2 SSC subpopulation, which was potent at suppressing macrophage inflammation.

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Recent investigations have shown that the necroptosis of tissue cells in joints is important in the development of osteoarthritis (OA). This study aimed to investigate the potential effects of exogenous skeletal stem cells (SSCs) on the necroptosis of subchondral osteoblasts in OA. Human SSCs and subchondral osteoblasts isolated from human tibia plateaus were used for Western blotting, real-time PCR, RNA sequencing, gene editing, and necroptosis detection assays.

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Hematopoietic stem cell transplantation (HSCT) is one of the effective options for the treatment of irradiation-induced injury on hematopoiesis, malignant hematological diseases, and numerous benign severe hematopathy. However, the cellular composition of the graft for HSCT, as well as the significant events of transplanted HSCs in receipients including HSC homing, engraftment, differentiation, remains to be further elucidated. In recent years, with advances in single-cell techniques, the hematopoiesis has been decoding at single cell scale.

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Article Synopsis
  • * Phage-based nanoplatforms are gaining attention for their structured design, high efficiency, and ability to deliver therapeutic peptides, enhancing drug delivery specifically to tumors.
  • * This review explores phage structure and biology, highlighting their potential as effective alternatives to traditional drug delivery methods, particularly in overcoming barriers to treatment.
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  • * A spinal-specific super enhancer (SS-SE) was identified that regulates pain-related genes NTMT1 and PRRX2, particularly in response to nerve injury in mice.
  • * Inhibiting the BRD4 protein or deleting the SS-SE decreased the expression of these genes and reduced pain sensitivity, suggesting that targeting BRD4 could be a potential therapy for managing neuropathic pain.
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  • - The study investigates the potential of articular cartilage stem cells (ACSCs) in treating osteoarthritis (OA) by isolating these cells from diseased joints and evaluating their effects on joint health in rat models.
  • - ACSCs demonstrated significant stem cell-like properties and improved joint conditions in OA rats, notably reducing abnormal bone remodeling after injection into the knee joints.
  • - The results indicate that ACSCs inhibit the formation of osteoclasts (bone-resorbing cells) in the osteoarthritis context, mediated by specific proteins which contribute to joint healing and improved bone structure.
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Nerve injury-induced aberrant changes in gene expression in spinal dorsal horn neurons are critical for the genesis of neuropathic pain. N6-methyladenine (m 6 A) modification of DNA represents an additional layer of gene regulation. Here, we report that peripheral nerve injury significantly decreased the level of m 6 A-specific DNA methyltransferase 1 ( N6amt1 ) in dorsal horn neurons.

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Extensive application of carbon quantum dots (CQDs) enlarges its concentration in sewage treatment system. The response of nitrifying sludge to CQDs after long-term exposure was investigated. Results showed that CQD concentrations of 0-100 mg/L presented positive effect to enzymes involved in nitrification, accelerating NH-N degradation and NO-N transformation.

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Background/purpose: Alveolar bone fenestration and dehiscence is common in untreated patients and potentially harmful. This study was to evaluate the effect of augmented corticotomy (AC) on the prevention and treatment of alveolar bone defects in skeletal class III high-angle patients during presurgical orthodontic treatment (POT).

Materials And Methods: Fifty patients with skeletal Class III high-angle malocclusion were enrolled, of whom 25 patients (G1) underwent traditional POT and 25 patients (G2) received AC during POT.

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  • Skeletal stem/progenitor cells (SSPCs) are found in bones and are essential for bone development, maintenance, and healing, but their diversity and regenerative abilities in mice need more research.
  • This study uses advanced single-cell RNA sequencing to analyze SSPC populations in mouse bones and identifies various cell types involved in bone growth and regeneration.
  • A new population of SSPCs named Cd168 was discovered, which shows strong regenerative potential and is found in specific areas of postnatal mouse bones, indicating its role in healing and tissue formation.
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  • * As nCrO levels increase, Chlorella sp. produces more extracellular polymeric substances (EPS) to protect itself, but this adaptive response eventually fails, leading to severe cellular damage and metabolic disruptions.
  • * The research highlights that the toxicity of nCrO is linked to physical cell damage, increased oxidative stress, and impaired gene transcription related to essential metabolic processes at doses starting from 20 mg/L.
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Objective: To establish an intestinal organoid model that mimic acute graft versus host disease (aGVHD) caused intestinal injuries by using aGVHD murine model serum and organoid culture system, and explore the changes of aGVHD intestine in vitro by advantage of organoid technology.

Methods: 20-22 g female C57BL/6 mice and 20-22 g female BALB/c mice were used as donors and recipients for bone marrow transplantation, respectively. Within 4-6 h after receiving a lethal dose (8.

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The occurrence of metal oxide nanoparticles (NPs) in wastewater treatment plants (WWTPs) has raised great concerns about their adverse impacts on nitrification performance. In this study, a heterotrophic nitrifying bacterium Pseudomonas putida strain NP5 showed strong resistance against TiO and NiO NPs. Under 5-50 mg/L NP stress, cell viability was still normal, and the final nutrient removal rates, always higher than 80%, were slightly inhibited.

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Highly enantioselective synthesis of 3,3'-spirooxindole γ-lactams with three contiguous stereocenters (two quaternary) was achieved. The aza-Michael/Mannich cascade reaction of α-imine-β-oxobutanamides and methyleneindolinones catalyzed by a bifunctional diaminocyclohexane-derived thiourea catalyst gave the desired products in moderate to good yields (up to 78%), moderate to good diastereoselectivities (up to 10:1 dr), and good to excellent enantioselectivities (up to >99% ee). A gram-scale synthesis and some transformations of 3,3'-spirooxindole γ-lactams were also carried out.

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Background: Repairing radiation-induced bone injuries remains a significant challenge in the clinic, and few effective medicines are currently available. Psoralen is a principal bioactive component of Cullen corylifolium (L.) Medik and has been reported to have antitumor, anti-inflammatory, and pro-osteogenesis activities.

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Somatic cells of higher plants possess the remarkable ability to regenerate new individuals via reestablishing apical meristems. Reconstitution of shoot meristem is the vital process and is required for application of plant biotechnology. Under culture condition, shoot meristem can be formed directly or indirectly, depending on the absence or presence of callus as the intermediate status.

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In recent years, nanotechnology has been widely used in the field of tumor treatment. Some nanomedicine applications have been approved for tumor treatment, but nanomedicine has not so far demonstrated the anticipated therapeutic effect. In this process, the tumor microenvironment plays a major role.

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